SelectSaver3p

Save and restore selected file handle

Usage

    use SelectSaver;
    {
       my $saver = SelectSaver->new(FILEHANDLE);
       # FILEHANDLE is selected
    }
    # previous handle is selected
    {
       my $saver = SelectSaver->new;
       # new handle may be selected, or not
    }
    # previous handle is selected

Overview

A "SelectSaver" object contains a reference to the file handle that was selected when it was created. If its "new" method gets an extra parameter, then that parameter is selected; otherwise, the selected file handle remains unchanged.

When a "SelectSaver" is destroyed, it re-selects the file handle that was selected when it was created.

Releases

32 releases since OpenBSD 5.0; the text changed 20 times.

5.0–5.3
5.4–5.5
5.6
5.7
5.8–5.9
6.0
6.1
6.2
6.3–6.4
6.5
6.6
6.7
6.8
6.9–7.2
7.3
7.4
7.5
7.6
7.7–7.8
7.9
8.0